Combustion-chamber carburetor



AW. 10, w23. ibm-w29 A. P. PELSER COMBUSTION CHAMBER CARBURETOR Filed Mal. 24, 1922 INVENTOR.

ATTONY.

Patented Apr. 1G, 1923.

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ABRAHAM P. PELSER, OF GREENFIELD, MASSACHUSETTS.

COMBUSTION-CHAMBER CARBURETOR.

Application filed March 24, 1922.

To all whom t may concern:

Be it known that I, ABRAHAM l?. Pnnsnn, a citizen of ,the United States, residing at Greenfield, in the county of Franklin and State ofMassachusetts, have invented certain new and useful Improvements in Combustion-Chamber Carburetors, of. which the following is a specification.

This invention relates to attachments to furnaces, stoves, ranges, and the like, for supplying superheated air above the lire, and has for one of its objects to simplify and improve the construction and increase the eiiciency and utility of devices of this character.

Another' objectof the invention is to provide a device of this character which may he quickly applied, preferably to the fuel door, and without change in the door or the fire chamber except to cut a relatively small aperture through the door and Without interference with ordinary draft appliances, or the opening or closing of the door.

With these and other objects in view the invention consists in certain novel features of construction as hereinafter shown and described and then specifically pointed out in the claims, and in the drawings illustrative of the preferred embodiment of the invention Figure 1 is an elevation of a portion of the wall of a furnace together with the fuel door with the improvement applied.

Fig. 2 is a section on the line 2-2 of Fig. 1.

Fig. 3 is a plan view, partly in section, of the improved device.

Fig. 4 is a -side elevation of the parts illustrated vin Fig. 3.

Fig. 5 is an end vievv of the in Fig.

The improved device includes an internally threaded sleeve 10, adapted to bear at one end against a support, for instance the door 11 of a furnace.` The door 11 is of the usual form and When provided with the usual guard member 12, the sleeve 10 Will bear against the guard member as indicated in Fig. 2.

A short section of pipe 13 is threaded into the sleeve 10 at one end and extends through an aperture in the door l1 and likewise through the guard 12 when one is encountered, and provided at its outer end with a controlling valve 14, the latter likewise operating as a clamping means to couple the parts shown Serial No. 546,233.

sleeve 10 and pipe section 13 firmly in position upon the support.

Threaded into the inner or opposite end of the sleeve 10 is a longer section of pipe 15 having a plurality of coils 16 bent there-y in, as shown.

At its outer end the pipe 15 is ,threadedv into a head member 17, the latter branching and provided with a sprayingnozzle 18 at the terminal of each branch.

The nozzle devices are threaded into the branches, so that they can be readily renewed When burned out, and each provided with transverse clefts 19 through which the heated air escapes.

The pipe l5 with its coil 16 is so located relative to the fire on the grate, that the air escaping through the clefts 19 will come in contact with the iiame as it rises from the fuel and thus supply fresh highly heated air to the fuel and materially accelerate the combustion and thus effect a very material saving in fuel.

The following extract from a report from the Department of the interior is applicable in the present case: COne-half of combustion takes place in the fuel bed and one-half in the combustion space above the fuel bed. The oxygen flowing up through the grate is all used as it passes through the first three or four inches of the fuel bed. Therefore, the addition of air above the fuel bed for completely burning the gases and preventing smoke is essential.

The improved device eifectually accomplishes the above results with a simple and inexpensive device which may be quickly and readily applied and adapted to fire chambers of various forms and sizes. The device may be of any ,required size or capacity to adapt it to fire chambers of varying sizes. The controlling valve will preferably be of brass, or other non-corrosive metal or met-allie compound.

The coils 16 are arranged flativise relative to the fire, so that the air in passing through continually rises toward the nozzle, and the formation of pockets or retarding bends is avoided, so that the flowing air is continuous from the intake valve 14 to the nozzle.

A stop pin 20 is preferably forced into the plugs 18 at the intersection of the clefts 19. as shown in Fig. 5, to increase the efiiciency of the spraying action.

The preferred embodiment of the invention is disclosed in the. drawings and set l'orth in the specification, but it will be understood that modiications within the scope of the claimed invention may be made in the con-struction without departing from the principle of the invention or sacrificing any of its advantages.

Having thus described the invention, is claimed as new s:-

l. A device of the cla-ss described comprising a section of piping adapted to operate through the fuel door of a combustion chamber, a laterally branching tubular member connected to the inner end of the piping, a nozzle device terminating each branch and each comprising a tubular plug closed at the outer end except for a plurality of transversely directed intersecting clel'ts, and a what baille member at the intersection of the clefts, whereby the air passing through the plug will be directed laterally through the clefts.

2. A device of the class described comprising a section of piping adapted to operate through the fuel door of a combustion chamber, a hollow head member connected to the inner end of said piping, a tubular plug connected int-o said head and closed at the outer end except for a plurality of transversely directed intersecting clefts, and a baille member at the intersection of the clefts, whereby the air flowing through said pipes and plugs will be directed laterally through the clefts.

In testimony whereof, I alix my signa ture hereto.

ABRAHAM P. PELSER. 

